#!/usr/bin/node

if(process.argv.length !==3){
  console.error('命令行格式：cmd base64_string');
  process.exit(1);
}

const buf=new Buffer(process.argv[2],'base64');
const info=buf.toString('utf-8').split(':');

if(info.length !==2){
  console.error('信息有误！');
  process.exit(2);
}

console.log('user name: %s\npassword:%s',info[0],info[1]);





